Yeah, TBH I always had my doubts a bout a straight port of Ice for Brutes based on that, Luigren, but I always thought the whole idea was just abandoned immediately, when they could have done some tweaks to Brutes' versions of the powers (like maybe make Chilling Embrace give less -Rchg slow, so foes can still attack some, but maybe more -Dmg to compensate, and make the Ice Melee attacks generate more Fury than others to account for the slows there).
And you're right, Ice Stomp became a thing much later, at least Issue 11.